Movable blade for a turbomachine

A movable blade for a turbomachine, the blade comprising at its distal end a top portion comprising:

• a platform defining an outside surface of a passage for gas passing through the turbomachine, and opposite first and second side edges;
• and
• upstream and downstream sealing wipers extending radially outwards from the platform;
• wherein each of the first and second side edges includes a substantially Z-shaped profile between the upstream and downstream wipers, which profile includes a first segment closer to the upstream wiper, an intermediate second segment, and a third segment closer to the downstream wiper, the first and third segments being substantially parallel to each other, and the second segment extending obliquely between the first and third segments;
• wherein the top portion includes, on a side of the first side edge, a first outwardly projecting rim that extends along the second segment of the first side edge, the first rim not being connected to either of the upstream and downstream wipers;
• and
• the top portion includes, on a side of the second side edge, a second outwardly projecting rim, the second rim having a downstream portion connected to the downstream wiper and extending along the second and third segments of the second side edge, and an upstream portion extending the downstream portion as far as the upstream wiper, being set back relative to the first segment of the second side edge.